<?php

class PurchaseController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column1';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete', 'addPurchase'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Purchase;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Purchase']))
		{
			$model->attributes=$_POST['Purchase'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->purchase_id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Purchase']))
		{
			$model->attributes=$_POST['Purchase'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->purchase_id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Purchase');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Purchase('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Purchase']))
			$model->attributes=$_GET['Purchase'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}
	
	public function actionAddPurchase($invoice_id, $customer_id) {
	
		$model = new Purchase;
		
		$invoice = Invoice::model()->findByPk($invoice_id);
		$customer = Customer::model()->findByPk($customer_id);
		$criteria = new CDbCriteria; 
		$criteria->condition='customer_id=:customer_id';
		$criteria->params=array(':customer_id'=>$customer->customer_id);
		$address = Address::model()->find($criteria); 

		if(isset($_POST['wine_id'])) {
			$model->wine_id = $_POST['wine_id'][0];
			$model->customer_id = $customer_id;
			$model->invoice_id = $invoice_id;
			$model->amount = $_POST['Purchase']['amount'];
			$model->tax = 20; //TODO
			
			if($model->save()) {
				$this->redirect(array('invoice/wineSelected','invoice_id'=>$invoice->invoice_id, 'customer_id'=>$customer->customer_id));
			} else {
				$this->redirect(array('view','id'=>$model->purchase_id));
			}		
		} 

		$wines = new Wine("new");
		
		// Create filter model and set properties
		$filtersForm = new FiltersForm;
		
		if (isset($_GET['FiltersForm']))
		    $filtersForm->filters=$_GET['FiltersForm'];
		 
		// Get rawData and create dataProvider
		$rawData = Wine::model()->findAll();
		$filteredData=$filtersForm->filter($rawData);
		$dataProvider = new CArrayDataProvider($filteredData, array(
	       'keyField' => 'wine_id', 
	    ));
		
		$this->render('view_wines_for_purchase', array('model'=>$model, 'invoice'=>$invoice, 'customer'=>$customer, 'address'=>$address, 'dataProvider'=>$dataProvider, 'filtersForm'=>$filtersForm));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Purchase the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Purchase::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Purchase $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='purchase-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}

}
